Chromosomes are made out of Euchromatin

a. true
b. false


Answer: b. false

Biology & Microbiology

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True sea snakes are ________ and do not come to land to breed

a. oviparous b. none of these choices c. viviparous d. ovoviviparous

Biology & Microbiology

Which of the following factors could be important in determining a species' fundamental niche? Check all that apply.  

_____  salinity _____  presence of a commensalist  _____  soil type _____  presence of a predator/parasite _____  seasonal temperatures Clarify question: What is the key concept addressed by the question? What type of thinking is required?   Gather Content: What do you already know about fundamental niches and what factors influence the niche? What other information is related to the question?  Choose Answer: Given what you now know, what information is most likely to produce the correct answer?   Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?  

Biology & Microbiology

The ________, which acts as a brake on cell division, was discovered in studying the eye cancer retinoblastoma.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Even though DNA polymerase has a proofreading function, it still introduces errors in the newly synthesized strand at a rate of 1 per 107 nucleotides

To what degree does the mismatch repair system decrease the error rate arising from DNA replication? (a) 2-fold (b) 5-fold (c) 10-fold (d) 100-fold

Biology & Microbiology